why weyland all of a sudden?

i just finished watching extras on alien directors cut special edition,3 hours of fantastic behind the scenes stuff.the only thing is the more i watched the more i got to thinking how prometheus could end up as a load of contrived codswallop.i mean lets face it,ridley didnt write alien,he was just fetched in to direct it.at the end of the disc ridley says he would return to the alien universe to film the backstory of the "space jockey"but only with a great script.i just cant see this as "the one" i mean idris elba saying"prometheus has landed"pleeeease.anyway back to my question,why has ridley decided to keep the name of the company as camerons weyland instead of his weylan.is this the untie-in with alien that he keeps harping on about?i hope to god im wrong but this movie could end up being a travesty.on a lighter note,has anyone else noticed how the SJ cocpit set bears striking similarities with the british who wants to be a millionaire set,i could just imagine chris tarrant sat in his chair.