Alright Don, Ill try...
John Wayne was in The Green Berets with David Jannsen
Who was in SOS Titanic with Harry Andrews,
Who was in Death On The Nile with Maggie Smith,
Who was in Gosford Park with Michael Gambon,
Who was in Sleepy Hollow with Miranda Richardson,
Who's voice is heard in Chicken Run along with Mel Gibson,
Who was in Mad Max Beyond Thunderdome with Tina Turner,
Who sang the theme song to Goldeneye,
Which starred Fammke Jannsen,
Who was in House On Haunted Hill,
Which was a remake of a 1958 classic thriller,
Which was produced and directed by William Castle,
Who also made the original Th13teen Ghosts,
Which starred Margaret Hamilton,
Who was Wicked Witch Of The West in The Wizard Of Oz,
Which starred Judy Garland,
Who was in Judgement at Nuremburg with Marlene Dietrich,
Who was in Blode Venus,
Which starred Cary Grant,
Who's wife Betsy Drake was saved from the Andrea Doria,
Which also carried Ruth Roman,
Who was in Strangers On A Train,
Which was directed by Alfred Hitchcock,
Who (DRUMROLL PLEASE) almost directed a Titanic film!
Wait... Im Not Done!!!
Hitchcock also did Psycho starring Anthony Perkins,
Who was in Murder On The Orient Express,
Which also starred Albert Finney,
Who was in Erin Brokavitch,
Which stars Julia Roberts,
Who was in Steel Magnolias with Sally Field,
Who was in Mrs. Doubtfire,
Which featured Mara Wilson,
Who played Matilda,
Whose mother is Rhea Pearlman,
Who was on Cheers,
With Kirstie Alley,
Who was in For Richer Or Poorer,
With Tim Allen,
Who was on Home Improvement,
With Jonathan Taylor Thomas,
Who's voice is in the Lion King,
And so is James Earl Jones,
Who was in Coming To America,
Which also features Eddie Murphy,
Who was on Saturday Night Live,
And Steve Martin hosted the show the most,
And he was in Three Amigos,
Which also starred Chevy Chase,
Who was in the Vacation series,
Which also starred Randy Quaid,
Who's younger brother Dennis was in the Frequency,
Which is about seeing the past,
As is Time Bandits,
Which stars David Warner,
Who was in Titanic!
More than six degrees!
Dave, if this is your route, this one really IS a bit obscure. Are you thinking of (1) Jennifer Saunders, who stars with Joanne Lumley in "Ab Fab" and (2) Joanne Lumley starred with Patrick MacNee in "The Avengers" and (3) Patrick MacNee played Thomas Andrews in the television version of "ANTR"?
Played daughter of Gerard Depardieu in some pervy French film.
Depardieu was in Green Card with Andie McDowell.
Andie McDowell was in The Muse that featured James Cameron.
Cameron, as we all know, directed Titanic.
How about one that links all four major Titanic films, the 1953 Titanic, ANTR, SOS Titanic and Cameron's Titanic?
Clifton Webb who appeared in 1953 Titanic starred with Laurence Naismith in The Man Who Never Was who played Captain Smith in ANTR which starred Norman Rossington as the third class steward (Everyone up top, get yer lifebelts on AT ONCE) who starred as the Master-at-arms in SOS Titanic which also starred David Warner as Laurence Beesley who also starred as Lovejoy on Cameron's Titanic.
Best I can do with Bela Lugosi takes me through "The Old Dark House". Lugosi starred with Boris Karloff in several flicks ("The Black Cat", "The Body Snatcher", etc.) and Boris Karloff was featured in "The Old Dark House" with a very young Gloria Stewart (Old Rose in "Titanic").
Excellent work, John L, in your connecting up the 4 'Titanics'!