British Pathé's five minute 1955 short "Our Jamaican Problem" offers a snapshot of some of the racial attitudes in mid-century Britain, when there was a strong wave of immigration from its (then) colonies in the Caribbean. Films like this would have been shown as part of the newsreel preceding the screening of the feature film at cinemas.

hi! there's lots of room for more discussion here, but meanwhile you can get started on a few previous posts

• Racism in late 19th - early 20th century United Kingdom. - comments by /u/skedaddle and /u/agentdcf

• why was the culture of racism against black people so prevalent in the US in the 40's and 50's but not in other western nations such as the UK? - comments by /u/KerasTasi and /u/dietdrpeppercherry

• Was there a civil rights movement in the UK? - various users

if you have follow-up questions on any of these, ask them here & page the relevant user by including their username