A properly boomed actor sounds very natural to the ear. Boom microphones are a staple in most film sound engineers arsenal of tools.
The 4017B Shotgun Microphone has a hypercardioid pickup pattern designed with a unique interference tube that provides excellent off-axis rejection. This unique directional pattern is useful when you need high directivity with high background noise rejection. Rejection of background noise is needed when you cannot place the mic close to the sound source. The even shorter 4018C Supercardioid Microphone, Compact has a highly-directional supercardioid pickup pattern with a smooth and uniform off-axis frequency response. It is designed for use in film miking applications where space is limited. Like interior car scenes placed in the sun visor.