After playing Renfield, Dwight Frye would find himself typecast. He found himself restricted to playing eccentric or jittery characters that had a manic edge to them or criminal lunatic types.
In the scene where Dracula and Renfield are traveling to London by boat, the footage shown is borrowed from a Universal silent film called The Storm Breaker (1925). Silent films were projected at a different frames-per-second speed from that later adopted for sound films, accounting for the jerky movements and quicker-than-normal action of these shots.
Generally regarded as the film that kickstarted the horror genre in Hollywood.
While it is rumored that Bela Lugosi could not speak English very well and had to learn his lines phonetically, this is not true. Lugosi was speaking English as well as he ever would by the time this was filmed.
Bela Lugosi was so eager to repeat his stage success and play the Count Dracula role for the film version, that he agreed to a contract paying him $500 per week for a seven-week shooting schedule, a paltry sum even during the days of the Depression. In fact, his salary was only one quarter that of actor David Manners who played Jonathan Harker. However, this fact might be misleading. Although David Manners earned $2,000 a week, he likely didn't pocket all of that money. Manners was under contract to Warner Bros./First National, which had "loaned out" their contract player at a rate considerably higher than the performers' weekly salary. Hence, much of Manners' salary went directly to Warner Bros./First National.