Debunking the Conspiracy Theorists
The exit door on the LEM is too small to allow for the egress / ingress of
an astronaut in a space suit.
Actually, there are several photos in the NASA archives which show an
astronaut half way out of the hatch!
The dimensions of the hatch are
large enough to allow an astronaut
fully decked-out in a spacesuit to get
in and out of the LEM.