<PAGE>
WEITZ SERIES FUND, INC.
Supplement dated March 23, 1998 to the
Prospectus dated July 15, 1997
The Funds' custodial relationship has changed to a different branch within the
Norwest Bank system. As a result the following changes are made to the Funds'
Prospectus:
The wire instructions on Page 21 of the Prospectus are amended in their entirety
to read as follows:
2. Instruct the bank to wire funds as follows:
Norwest Bank Minnesota, N.A.
Minneapolis, MN
ABA#091000019
Norwest Trust Clearing Mpls
#0840245
For credit to: Weitz Series Fund, Inc.
Value #25301300
Fixed Income #25304100
Govt Money Mkt #25305200
Hickory #25307000
For the Account of: Your Account Number and Name
The section titled "Custodian" on page 31 is amended in its entirety to read as
follows:
CUSTODIAN
Norwest Bank Minnesota, N.A., Minneapolis, Minnesota, is the Custodian for
the Funds.
<PAGE>
WEITZ SERIES FUND, INC.
Supplement dated March 23, 1998 to the
Statement of Additional Information dated July 15, 1997
The paragraph titled "OTHER SERVICES" on Page 20 of the Statement of Additional
Information is amended in its entirety to read as follows:
OTHER SERVICES The custodian for the Funds is Norwest Bank Minnesota, N.A.,
Minneapolis, Minnesota. The Company's accountant is McGladrey & Pullen LLP, New
York, New York. The Company's legal counsel is Dechert Price & Rhoads,
Washington, DC.
