The velocity of magnetic bubble propagation in a magnetic field gradient in sputtered amorphous, metallic films has been measured in several samples. The measurements show typical mobilities ranging from 500 cm/sec‐Oe to 2000 cm/sec‐Oe and velocities up to 10,000 cm/sec. With very high drive fields the bubble velocities become poorly reproducible and deflection of the bubble from the field gradient direction occurs suggesting a dynamic change in wall structure. Bubble domains with complex wall structures are also suggested by the observation of stable dumbbell shaped domains which rotate in a pulsed bias field. The eddy current contribution to the damping of wall motion in the films is approximately calculated and shown to be negligible.