The 35-year-old comedian plays the conniving Le Fou, the mindless lackey of Luke Evans' villainous Gaston in the film, reported ET online.
"Having seen it, I can tell you that (fans) are going to react appropriately awestruck and amazed," Gad said.
He also praised co-star Dan Stevens, for his portrayal of the Beast.
"Dan's performance is just incredible. He gives it a gravitas that I think just grounds the entire movie."
Stevens stars opposite Emma Watson, who plays the iconic Disney princess Belle.
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