Ansel Elgort Rooted Against 'Guardians of the Galaxy' at Oscars (Video)

Ansel Elgort Tonight Show - H 2015

Sorry Groot.

Ansel Elgort revealed on Tuesday's The Tonight Show that he had a vested interest in who won the best visual effects Oscar, which he presented at the Academy Awards.

See more Titans of Comic-Con: Stars Re-Create Classic Characters

Elgort was sweating bullets because the names of the nominees in that category were difficult to pronounce and he was worried he'd pull a John Travolta and flub them. The only one of the nominated films with easy names to pronounce? Interstellar — which ultimately won.

For comparison's sake, Elgort showed Jimmy Fallon the names of the Interstellar team: Paul Franklin, Andrew Lockley, Ian Hunter and Scott Fisher. The Guardians team wasn't as straightforward: Stephane Ceretti, Nicolas Aithadi, Jonathan Fawkner and Paul Corbould.

Watch Elgort spell it all out below.