Star

Star vs. the Forces of Evil: The Movie is a 2018 animated fantasy action/adventure comedy film produced by Walt Disney Pictures and DisneyToon Studios, directed by Daron Nefcy (the creator of the show itself) and co-directed by Joss Whedon. It's based on the 2015 animated TV series of the same name. It was released on June 22nd, 2018.

Plot
At the Diaz Household, Star Butterfly (Eden Sher) and Marco Diaz (Adam McArthur) talk about how they defeat Ludo (Alan Tudyk) and his army of monsters along with his bald eagle and giant spider minions. Marco tells Star that everytime they defeat Ludo and his men, they will become heroes. Star agrees, but just as her and Marco were getting ready for school tomorrow, she will decide that someday she uses a new spell to defeat Ludo and his minions.

At Echo Creek High School, Star and Marco meet up with their classmates to work on a new invention to turn animals into statues. Star meets up with her boyfriend Oskar Greason (Jon Heder), who tells her that they can get married in the school wedding night in the next five weeks, which she accepts. Jackie Lynn Thomas (Grey Griffin) tells Star that her roommate Marina Smith (Emma Stone) is at home while texting to her to meet up with Marco at 5:00. Star and Marco leave the school at noon by 3:00. Star calls her best friend from Mewni, Pony Head (Jenny Slate) that she could help her and Marco save the world from Ludo, which Pony Head accepts.

At Ludo's castle, Ludo tells his minions that Star doesn't cast spells with her wand, although he has his own wand. He joins forces with his bald eagle and giant spider minions to enter a dimensional portal to an unknown dimension to take over the world, but is interrupted by his evil efficiency expert Toffee (Michael C. Hall), who warns him that Star will not be defeated if Star's home dimension, Mewni, wasn't going to be destroyed, much to Ludo's dismay.

Meanwhile, Star is working on a new spell that would defeat Ludo and his minions, much to Marco's surprise. She calls the new spell "Mighty Red Dragon Entrance" and puts it on her wand. Marco thinks it's a good spell to put it on her wand, and Star thanks him. Pony Head appears in Star's bedroom and tells her and Marco that they are ready to save the world, which they agree. Star, Marco and Pony Head leave the room to enter a dimensional portal using Star's dimensional scissors to save the world.

Back at Echo Creek High School, Jackie and her classmates try to look for Star and Marco, but Janna (Abby Elliott) tells her that they are gone to save the world with Pony Head, much to Jackie's surprise. Brittney Wong (Minae Noji) appears in the high school and informs the classmates that Star's not in there to get butt-kicked, even though she already had gone with Marco and Pony Head to another dimension. Jackie angrily scolds her that Star is not messing with her, Marco and Pony Head in another dimension, much to Brittney's shock. After Brittney leaves sadly, Janna thanks Jackie for scolding Brittney. Oskar tells Jackie that Star will return for their school wedding night, which she accepts and tells him to wait for Star to return. Jackie and her classmates wait for Star, Marco and Pony Head when they were done saving the world.

At a dark dimension, Star tells Marco and Pony Head that her greatest frenemy Dark Moonlight (Benedict Cumberbatch) used to live in Mewni, but now lives in a dark place called Darktown. Marco and Pony Head think it would be a scary place to live, but Star panics, apologizing to him and Pony Head that she was kidding. They decide to search for Moonlight, but Marco sees a dark shadow, which it appears to be one of Moonlight's men. Star doesn't think it's one of Moonlight's men, but Pony Head tells her it is, because one of them works for Moonlight. They arrive at Darktown, where Moonlight lives there. As soon as Star follows Marco and Pony Head inside the dungeon, they check it out when they see a lot of things darker. They are stopped by Moonlight, whom they had found her. Star asks Moonlight where he lives there, and he answers yes because they used to be friends in Mewni, in which Pony Head is forever her best friend, along with Marco. Star tells Moonlight that he is not her friend anymore, because Marco and Pony Head are best friends of her, which made Moonlight angry. Moonlight attacks Star while Marco and Pony Head stop him. He attempts to use his magic powers to blow away Star, but is bitten by Pony Head. Marco and Pony Head save Star, and they are chased by Moonlight's men. Star, Marco and Pony Head run to another portal, shocked and relieved, realizing what Moonlight did to them.

Back at Ludo's castle,

Cast
Eden Sher as Star Butterfly

Adam McArthur as Marco Diaz

Jenny Slate as Flying Princess Pony Head (aka Pony Head)

Alan Tudyk as Ludo and King Butterfly

Benedict Cumberbatch as Dark Moonlight, Star's greatest frenemy from Mewni.

Emma Stone as Marina Smith, Marco and Jackie's roommate.

Joss Whedon as the Mighty Red Dragon, a dragon casted by Star's spell. (Whedon also co-directed the film)

Grey DeLisle as Jackie Lynn Thomas, Queen Butterfly and others

Abby Elliott as Janna

Fred Tatasciore as Buff Frog

Michael C. Hall as Toffee

Zosia Marmet as Hekapoo

Kevin Michael Richardson as Rhombulus

Matt Chapman as Alfonzo

Nate Torrence as Ferguson

Jon Heder as Oskar Greason

Minae Noji as Brittney Wong

Artt Butler as Rafael Diaz

Nia Vardalos as Angie Diaz

Maurice LaMarche as King Pony Head and others

and more!

Trivia

 * Joss Whedon's directional debut in animation. He also directed The Avengers and Avengers: Age of Ultron.

Reception
The film received positive reviews from critics. Many fans said that Joss Whedon did a wonderful job co-directing the film and voicing as a new character in the film. They give it 8 out of 10 stars.

Music
The film features a song titled "Night Skies" performed by American singer Adam Young of Owl City.

Logo Variations

 * The current Disney logo is in black, and the castle is replaced with the Mewni castle, with a rainbow forming in place of the curved line. The rainbow then burns. The same variation is used during the end credits.
 * The DisneyToon Studios logo plays at the end credits, but without the DisneyToon Studios logo at the beginning, and the background is black. Star and Marco appear in the beginning of the logo, with Marco asking Star why isn't the logo starting to stay like that. Star fixes the logo with her wand using two hands, revealing the logo using magic. Marco thanks Star for bringing the logo back with her wand.