Zach Braff can relate to the monkey he plays in 'Oz the Great and Powerful'.

The 37-year-old actor portrays magician's assistant Frank and voices animated flying monkey Finley in the movie and Zach admitted he shares certain characteristics with the animal.

Speaking at the European premiere of the movie at the Empire Cinema in London's Leicester Square on Thursday (28.02.13), he told BANG Showbiz: ''It's a lot of fun being a talking monkey. I got to make up jokes and be silly, which is the most enjoyable thing to do in the word.

''I guess I was the prankster on set, I'm the silly silly one.''

Asked how he relates to Finley, Zach added: ''I like to think that I've got a good heart and Finley's sort of the conscience of the movie so, maybe that.''

Meanwhile, Mila Kunis, who plays naive and innocent Theodora, who eventually becomes the Wicked Witch of the West, loved working on the movie because it didn't completely rely on CGI.

She explained: ''[Theodora's] the youngest out of the three witches, she's very naive, very sweet.

''You know what, a lot of the sets were built ... [Good Witch of the South] Glinda's castle was built, the Emerald City was built, so a lot of it was very tangible, It's always nice to know what you're looking at.''

Other celebrities who attended included the movie's stars Michelle Williams, James Franco and Rachel Weisz, The Saturdays beauty Una Healy along with her husband Ben Foden, Danielle Lloyd and former 'X Factor' contestant Jade Ellis.