Colin Farrell felt "completely ridiculous" practicing with his wand for 'Fantastic Beasts and Where to Find Them'.
The Hollywood actor stars as Percival Graves, who is in charge of the protection of wizards, in the motion picture and admitted it took him some time before he got used to handling the sticks.
He told Sci-Fi Now magazine: "It's great to do research, but it's hard to do research on wizards.
"You can only twirl your wand in your hotel room for three or four minutes before you feel completely ridiculous."
Colin stars alongside Eddie Redmayne - who plays eccentric wizard Newt Scamander - in the fantasy film and admitted he got "complete stage fright" while using the hand-held rod because he didn't know how to handle the equipment.
He said: "It's a weird thing. When you get to pick up a wand, it's like your inner nine-year-old is having the best moment of his life. You're like, 'Oh my god, I get to use one of these. I've always wanted to use one of these.'
"Then you pick the thing up and you're like, 'Why does this feel so weird? What do I do with it?' I actually got complete stage fright. It took quite a while for us to get used to it."
Meanwhile, Colin previously admitted he never read the 'Harry Potter' books before starring in the movie.
He shared: "There are a few films where in they're on the television, I just can't turn them off, they're just so comforting; and any 'Harry Potter 'series qualifies as one of those films.
"It's just such a beautiful and immersive world, that pays due respect to human emotions. I would be a liar if I said being in a trailer where that score kicks in didn't get me excited. I'm 40 and I shouldn't say such things."
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