....[year] rename

[JAnwyl]

I have a whole bunch of files that are formatted.

Lethal Weapon 1987
Lethal Weapon 2 1989
Lethal Weapon 3 1992
Lethal Weapon 4 1998

I want to rename to

Lethal Weapon[1987]
Lethal Weapon 2[1989]
Lethal Weapon 3[1992]
Lethal Weapon 4[1998]

Know how to add a ] as a suffix, What am I missing?

[Stefan]

FROM:
Lethal Weapon 1987
Lethal Weapon 2 1989

TO:
Lethal Weapon[1987]
Lethal Weapon 2[1989]

RULE:
Match trailing four-digits with leading space, drop the space and put digits into brackets

TRY:
RegEx(1)
Match: ^(.+) (\d\d\d\d)$
Repla: \1[\2]