Austin Powers versus The Beatles

I was watching the opening credits for Austin Powers: International Man of Mystery
 
source: https://www.youtube.com/watch?v=R0tGPxvBcdk

But then I thought, wait a minute, wasn't a lot of the chase cribbed from A Hard Day's Night ?

source: https://www.youtube.com/watch?v=Pbg8T9r1DiQ

And why is George running with one hand in his pocket ?  George, Ringo and later a couple of the pursuers all fall down  -  I blame those slippery leather soled shoes of the 1960s !

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm