laugh Your video-scene is a little vague, but the wife doing all the talking shows a pretty avarage Dutch marital picture. Ja... well, our languages share many completely similar words even in pronunciation. It's true that when you see some of these words they may not completely look the same, but phonetically they're often very close. I'm sure you would learn to understand the spoken language very fast. We do have dialects, but only Frisian up in the North would need subtitles in a video.
Here a little easily drawn list of examples:


word-woord
book- boek ( equal phonetics)
finger -vinger
bed-bed
hand-hand
foot -voet
chin-kin
sock-sok
pain-pijn
sun-zon
sick-ziek
day-dag
find-vind
friend-vriend
bell-bel
ring-ring
door-deur
pot-pot
arm-arm
knee-knie

and so on