Adam Sandler magically transforms into ex-Downton Abbey star Dan Stevens in a trailer for The Cobbler, Digital Spy reports.

The upcoming comedy centres on the dreary life of Max Simkin (Sandler), who discovers a magic shoe repair device that changes his world.

Now able to transform himself into other people simply by wearing their shoes, Max Simkin has the opportunity to romance the woman of his dreams.

The Cobbler is co-written and directed by The Station Agent and Million Dollar Arm's Thomas McCarthy.

The movie also reunites Sandler with Steve Buscemi, whom he has previously worked with on Airheads, The Wedding Singer, Grown Ups and many other films.

Dustin Hoffman, Melonie Diaz and Method Man also have supporting roles in the movie.

The Cobbler opens on March 13 in the US.