Michael Myers Actor Tyler Mane Says Britney Spears at Risk with Prop Knives

Tyler Mane, famous for playing Michael Myers on the big screen, is an expert on prop knives ... and despite their dull edges, he says they can still hurt someone like Britney Spears.

We got the "Halloween" star at LAX and our photog asked him to weigh in on Britney's knife dancing controversy ... playing him a clip of her clanking knives together, which she insists are just props.

Tyler says Britney could be wielding prop knives, based on the sounds they're making, and he tells us how they're different from real knives ... basically, prop knives have dull edges and a dulled tip.

Remember ... this guy knows his stuff, he's used tons of real and prop knives on the set of 2 movies as notorious serial killer Michael Myers.

But, Tyler's not saying prop knives are inherently safe ... warning they still pose a danger if the person wielding them isn't careful.

Britney's fans aren't buying her prop knife explanation ... because she's also on video with a bandage on her arm and a cut on her leg ... and cops went to her house to do a welfare check, which didn't go over so well with Britney.