I hooked my kids on the Bob Hope Bing Crosby road movies...

Every Christmas we all sit down to "It's a Wonderful Life", "Holiday Inn", and "White Christmas"

They balked at the B&W movies at first then got hooked...

Any of the Japanese monster movies worked when I was 12.. Go Mothra!
A list:
"Tucker, the man and his dream",
the "Indiana Jones" movies
any of the old "Flash Gordon" type serials...
"Bringing up baby" Gotta love Katherine Hepburn! anything with her and Spencer Tracy is great.
the "Thin Man"series
"Casablanca"
"Key Largo"
"The Maltese Falcon"
Any Jimmy Stewart western!
and basically anything on Turner Classics...

__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad