Icke has said some weird things, like he thinks the Moon is in fact a hollowed out space
station, maybe something like the Death Stars in Star Wars.

He also mentioned something about humans actually really being lizards.

You should read Christopher Knight's book called 'Who Built The Moon?' It's very entertaining and extremely though-provoking, especially for people with enough intelligence to be able to think 'outside the box'.

He actually presents some hard facts that scientists for decades have been calling 'co-incidence'. For instance:
1. The moon is essentially too big.
2. It's 1/3 the size of Earth.
3. It's distance from the Sun is 2/3 of that of Earth.
4. The Sun and Moon appear to be exactly the same size when viewed from the Earth.
5. The Moon is able to totally eclipse the Sun.
6. Its rotation is such that we are never able to see its 'Dark Side'.
7. NASA photos show there are heaps of 'unexplained artifacts' on the Moon (many of which appear to be man-made structures)

The list goes on and on.......

As for the Lizards, well Icke believes these 'Lizards' are controlling people such as Bush, Obama, the British Royal Family, etc. I DID say that one needs to separate the 'wheat from the chaff' when listening to his 'ramblings', but there are a couple of excellent interviews (on U-Tube) in which he totally destroys the media presenter/journalist attempting to humiliate him.

If anything, Icke now appears to have allowed his own ego to get a bit too big (IMHO). He's been researching what he teaches for 25+ years in over 60 countries, so one HAS to give him a certain amount of credit.

He DOES talk a lot of sense, but as for the 'Lizards', I'm still a long way off being convinced, lol.