FLT ATTENDANTS NOT SEATED DURING LNDG.

Narrative

I NOTICED JUST BEFORE DSCNT THAT THE CAPT HAD THE SEATBELT SIGN ON; DIDN'T GIVE IT ANY MORE THOUGHT. IF OFF; IT IS USUALLY TURNED ON AT 18000 FT IN DSCNT. SO GAVE NORMAL 10 MIN WARNING TO FLT ATTENDANTS. HOWEVER; WE WERE #1 FOR THE ARPT AND CLRED FOR A VISUAL WHEN ABEAM THE ARPT SO A SHORT APCH WAS MADE. AFTER DEPLANING THE PAX; A COUPLE OF FLT ATTENDANTS INFORMED US THEY WERE NOT IN THEIR SEATS FOR LNDG. THEY SAID THEY WERE STOWING THINGS IN THE MID-GALLEY AND WERE RUNNING TO THE AFT CABIN WHEN WE TOUCHED DOWN. NO COM WAS RECEIVED FROM THE CABIN ABOUT THEIR SIT; AND FRANKLY; I DON'T RECALL IF A LNDG ANNOUNCEMENT TO THE PAX WAS MADE. LOTS OF CREWS DON'T WANT TO INTERRUPT A MOVIE IF IT IS STILL SHOWING. FORWARD FLT ATTENDANT SAID SHE WAS READY BECAUSE SHE ALWAYS PUTS AWAY EQUIP WHEN NOT IN USE. I THINK IT WOULD BE SMART IF ALL FLT ATTENDANTS DID THAT. YOU NEVER KNOW WHEN THE CABIN MUST BE SECURED IN A HURRY. HOWEVER; MANY FLT ATTENDANTS ARE NOT DILIGENT IN THIS REGARD. ALSO; I'VE NOTICED THAT MANY FLT ATTENDANTS HAVE A VERY CASUAL ATTITUDE ABOUT GETTING IN THEIR SEATS FOR LNDG -- OFTEN DOING IT WELL BELOW 1000 FT AGL. FINALLY; THE FLT ATTENDANTS SHOULD HAVE MADE A CALL TO THE COCKPIT TO LET US KNOW OF THEIR SIT.