In 1985, Leva was tapped by Cannon Films & Joseph Zito (who was the 2nd director to replace Tobe Hooper as being the first director attached for Spider-Man) to play Spider-Man in their adaptation of the comics. He was also the actor on the first photographic cover of a Spider-Man comic book, appearing as Peter Parker, half-way in costume, on The Amazing Spider-Man, #262 (cover date March 1985). He can be seen in costume as Spider-Man, on the blooper reel for the 2000 film X-Men, on which he served as a stunt-coordinator.
Safety equipment designer
After a friend died doing a high fall, Leva started to tinker with the standard airbags used by stunt performers and eventually designed an airbag with a different structure. The older airbags had a tendency to throw a stunt performer if they didn't hit the bag perfectly, the new bag uses a different arrangements of air bladders and a less slippery top layer to help the performer to stay on the bag. He was awarded an Academy Award for Technical Achievement for this design.