Bill Murray praises 11-year-old co-star

London: Funnyman Bill Murray says he usually does not like child actors but his 11-year-old co-star in movie 'St Vincent' surprised him with his high degree of professionalism.

The 64-year-old actor dislikes working with youngsters in his movies but has made an exception for Jaeden Lieberher, reported Contactmusic.

"This kid (Jaeden Lieberher) was more professional than most of the actors I've worked with. He was completely prepared and he has a wonderful mother and father who keep him normal. He never became a movie-star brat," Murray said.

Lieberher has been cast in Murray's upcoming film, an untitled Cameron Crowe romantic-comedy which is also set to star Bradley Cooper, Rachel McAdams and Emma Stone.