It's great when improv is encouraged. It's a really fun thing. It depends on who's in the movie and how their process works, as well. It takes a director who is open to that because you have a script, but then something funny could happen on set. So, to have people around you who encourage improv is really exciting.
Lily CollinsI'm a huge fan of the series of books by Cassandra Clare, The Mortal Instruments. I'm a fan myself, so to be cast as the lead heroine is completely incredible.
Lily Collins