Here's the synopsis:
A young Peter Parker/Spider-Man (Tom Holland), who made his sensational debut in Marvel Studios' Captain America: Civil War, begins to navigate his newfound identity as the web-slinging superhero in Spider-Man: Homecoming.
Cast: Tom Holland (In the Heart of the Sea), Michael Keaton (Batman, Birdman), Zendaya (K.C. Undercover), Donald Glover (The Martian, Community), Jacob Batalon (North Woods), Laura Harrier (One Life to Live), Tony Revolori (The Grand Budapest Hotel), Tyne Daly (Cagney and Lacey), Bokeem Woodbine (Fargo), with Marisa Tomei (My Cousin Vinny, The Wrestler), and Robert Downey Jr. (Iron Man, The Avengers).
However, based on the footage shown today, we do know Revolori is playing Flash Thompson. Here's how ComicBook.com's Lucas Siegel describes the footage:
Bad Reputation plays, and shots of high school. "Every Story" then shots of Tony, Rhodey, each character in high school. "Every journey. Has a beginning." Peter is walking through school, and a homecoming banner goes up. 9:30am Science. Peter's looking at footage of himself taking Giant Man down. Flash Thompson is an Indian character. The Disney channel star Zendaya may be playing Liz Allan! In Chemistry, Parker works on his web fluid on the side. A girl is playing F, M, K with Avengers. Liz thinks Spidey is hot. One of his other friends is trying to figure out what he's hiding. Jump cuts of him running down a hallway zipping a hoodie over the costume, and climbing up a wall, and finally, he and the "Ganke type" doing a handshake. Then VULTURE comes down a tube, with crazy armor.
The film is being directed by Jon Watts (Cop Car, Clown), based on a screenplay by Jonathan Goldstein & John Francis Daley (Vacation reboot) and Jon Watts & Christopher Ford and Chris McKenna & Erik Sommers.
The film is produced by Marvel boss Kevin Feige and former Sony boss Amy Pascal. Louis D'Esposito, Victoria Alonso, Patricia Whitcher, Jeremy Latcham, and Stan Lee are serving as Executive Producers.
Spider-Man: Homecoming will be released on July 7, 2017.